Trap and waste-outlet for set tubs, &amp;c.



PATENTED NOV. 1, 1904.

J. HOLMES.

TRAP AND WASTE OUTLET FOR SET TUBS, 6m.

APPLICATION FILED OUT. 27. 1903.

NO MODEL.

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UNTTED STATES Patented November 1, 1904.

PATENT OEEIcE.

JOHN HOLMES, OF BOSTON, MASSACHUSETTS.

SPECIFICATION forming part of Letters Patent No. 77 3,569, datedNovember 1, 1904. Application filed October 2'7, 1903. Serial No.178,729. (No model.)

To all whom it may concern:

Be it known that I, JOHN HoLMns, of Boston, in the county of Suffolk andState of Massachusetts, have invented certain new and usefulImprovements in Traps and Waste-Outlets for Set Tubs, &c., of which thefollowing is a specification.

This invention has for its object to provide a simple and effective trapfor connecting the outlets of two receptacles, such as a pair of settubs, with a waste-pipe in such manner as to securely trap the outletand guard against the admission of sewer-gas.

A further object of the invention is to provide a trap of this characterwhich may be readily varied in length to accommodate the distancebetween the outlets or holes formed in the bottoms of the two tubs.

The invention consists in the improvements which I will now proceed todescribe and claim.

Of the accompanying drawings, forming a part of this specification,Figure 1 represents a front elevation, partly in section, showing a pairof set tubs provided with a trap and waste-outlet embodying myinvention. Fig. 2 represents a section on line 2 2 of Fig. 1. Fig. 3represents a section on line 3 3 of Fig. 2.

The same reference characters indicate the same parts in all thefigures.

In the drawings, a a represent a pair of set tubs located side by side.My improved trap and waste-outlet comprises a curved body-section 6,having raised ends which are provided with coupling members 0 c forengagement with the outlets (Z (Z of the tubs a a. Said coupling membersmay be of any suitable construction which will permit the convenientdetachable connection of the body-sectionb with the outlets (Z (Z. Thecentral portion of the section I) is depressed below the ends thereofand is provided with an outlet 6 and with a coupling member f,surrounding said outlet. The outlet and coupling member are locatedbelow the raised ends of the section b. 9 represents a waste-pipe, whichis preferably elbow-shaped, as shown in Fig. 2, the lower end beingconnected by a coupling-nut f with the coupling member f. The Waste-pipeextends upwardly from the joint formed by its receiving end and theoutlet 6 and horizontally rearwardly to communicate with a suitabledischarge-pipe 2'.

It will be seen that the joint between the outlet 0 and the Waste-pipeis considerably lower than the ends of the section Z) and lower than thehighest part of the waste-pipe, so that a sufficient quantity of liquidis entrapped to rise above the said joint and prevent the escape ofsewer-gas thereat, any imperfection at said joint being indicated byleakage of water instead of sewer-gas.

Owing to the fact that the waste-pipe g eX- tends horizontally afterrising from the joint which connects it with the trap, I avoid allliability of emptying the trap by siphonage,

although the couplings c and the outlets cl of the tubs are atsubstantially the same height. Since the two outlets d are both at thebottoms of the tubs and in the same plane or at the same height, therecould be no entrance of air through either one of them to break asiphonage starting in the trap until so much liquid in the trap had beenwithdrawn as to destroy the seal. The horizontal portion of thewastepipe prevents the siphoning of the trap.

The improved trap is not only simple and effective, but presents a veryneat and symmetrical appearance.

The described trap presents a continuous passage having no pockets inwhich deposits can lodge. Hence the trap is kept clean by the flushingaction of the liquid passing through it.

The trap besides being neat and symmetrical in appearance is verycompact and reduces to the minimum the extent of pipe which is exposedabove the level of the water standing in the trap. The portions of pipebetween the tub-outlets and the water standing in the trap are theportions which become most quickly fouled, and these portions in myimproved trap are very short, as shown in Fig. 3.

The body-section b can be readily removed to permit the cleansing of itsinterior and of the outlets cl (Z.

The improved trap is very economical in construction.

As is well known, set tubs are usually furnished to plumbers by themanufacturers who work up the stone of which said tubs are usueasilyfitted to the outlets (Z (Z.

ally constructed. It is practically impossible to form the outlets orholes (Z (Z in the two tubs always at the same distance apart. In orderto enable my improved trap with the double connection to be applied byany plumber to the set tubs furnished to him, I form the curvedbody-section so that it may be readily lengthened or shortened by asimple bending of the said section. The section b is, as usual, made oflead, which is of course ductile and will permit it to be bent. As shownin the drawings, the section b is irregularly curved. By straighteningout the curves or by increasing them the ends may be brought nearertogether or spread farther apart, so that the couplings c, to which theends of the section b are connected, may be Moreover, the structurepermits of the curved section being bent laterally, so as to suit thedistance at which the tubs may be set from the wall or the distance atwhich the discharge-pipe a is located behind the wall of the room.

By disconnecting the couplings c and f the trap as a whole may bereadily lifted out by hand for cleaning purposes, as will be readilyunderstood.

It is to be further noted that the construction of the trap as a wholeis such that when water is flowing out from one of the two tubs itcannot cause any air from the trap to pass into the other tub, for thereason that there is I a seal formed each side of the center of thecoupling.

I claim 1. A trap and waste-outlet for set tubs, 620., comprising,first, a body-section of ductile material adjustable in length andprovided with coupling members for engagement with tub-outlets, and acentral portion depressed below said ends and provided with an outletand with a coupling member surrounding said outlet, both located belowthe said raised ends; and secondly, a waste-pipe coupled to andextending above the said outlet.

2. A trap and waste-outlet for set tubs, &c. comprising, first, anirregularly-curved bodysection of ductile material having raised endsprovided with coupling members for engaging with tub-outlets, saidirregularly-curved section enabling the distance between its ends to bevaried, and a central portion depressed below said ends and providedwith an outlet and with a coupling member surrounding said outlet, bothlocated below the said raised ends; and secondly, a waste-pipe coupledto and extending above the said outlet, the joint between the waste-pipeand outlet being below the raised ends of the bodysection and below thewidened portion of the waste-pipe.

In testimony whereof I have afliXed my signature in presence of twowitnesses.

JOHN HOLMES.

Witnesses:

C. F. BROWN, E. BATGHELDER.

